Home / 11,130.32-15,365.38-6,413.68

Finding the Fourth Proportional to 11,130.32, 15,365.38 and 6,413.68

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Solution

The fourth proportional to 11,130.32, 15,365.38 and 6,413.68 is: 8,854.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,130.32 : 15,365.38 = 6,413.68 : x
  2. Step 2: Convert to fraction form
    11,130.32/15,365.38 = 6,413.68/x
  3. Step 3: Cross multiply
    11,130.32x = 15,365.38 × 6,413.68
  4. Step 4: Simplify right side
    11,130.32x = 98,548,630.40
  5. Step 5: Solve for x
    x = 98,548,630.40/11,130.32
  6. Step 6: Final answer
    x = 8,854.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.